Automatically Coloring Multiple Frames for Animation

Hello, I've been using CSP Pro for image drawing for the past year and now I just got the CSP EX and I'm trying to get into animation. My only question is how to color several frames at once as in the feature you get in OpenToonz. So far I've only found one tutorial to do so in YouTube but it was hard to understand the instruction given only in the description.

Thank you so much for your time and assistance :)

Note: Having a feeling I'll have to redo the entire project if I don't arrange the cells right....but that's ok